Results 21 to 30 of about 325,108 (297)
IEEE Microwave Magazine, 2006 The development of the broadband antenna for ultrawideband (UWB) applications such as communications, imaging, radar, and localization is discussed. UWB systems are based on transmitting and receiving impulses with extremely wide spectra. As the antennas for UWB should have broad operating bandwidths for impedance matching and high-gain radiation in ...
Cheng, Zhi Ning +5 more
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Binary phase-controlled multi-beam-switching antenna array for reconfigurable 5G applications
EURASIP Journal on Wireless Communications and Networking, 2019 The paper presents a two-phase state based multi-beam-switching scheme implemented on a custom-designed 4 × 4 antenna array operating with a bandwidth of 1.5 GHz around 14 GHz.
Vedaprabhu Basavarajappa +3 more
doaj +1 more source
Sensors, 2023 In the ever-evolving landscape of modern wireless communication systems, the escalating demand for seamless connectivity has propelled the imperative for avant garde, versatile, and high-performance antennas to unprecedented heights [...]
Naser Ojaroudi Parchin +2 more
openaire +4 more sources
An investigation into the Gustafsson limit for small planar antennas using optimisation [PDF]
, 2013 The fundamental limit for small antennas provides a guide to the effectiveness of designs. Gustafsson et al, Yaghjian et al, and Mohammadpour-Aghdam et al independently deduced a variation of the Chu-Harrington limit for planar antennas in different ...
Lewis, Andrew +2 more
core +2 more sources
Quasi-optics-inspired low-profile endfire antenna element
EURASIP Journal on Wireless Communications and Networking, 2019 In this paper, the design, operational principle and experimental validation of an endfire antenna element that is inspired by the energy-focusing characteristics of graded-index optical fibre are presented.
Vedaprabhu Basavarajappa +3 more
doaj +1 more source
IEEE Access, 2017 A novel dual-broadband dual-polarized base station antenna array with compact structure and low profile is proposed in this paper for the existing mobile communication system operating over 0.79-0.96 GHz (European Digital Dividend/CDMA/GSM) and 1.71-2.17
Yejun He, Wei Tian, Long Zhang
doaj +1 more source
Compact and Wideband Differentially Fed Dual-Polarized Antenna With High Common-Mode Suppression
IEEE Access, 2019 A compact and wideband differentially fed dual-polarized antenna with high common-mode suppression is investigated in this paper. A square patch with crossed-slot consisting of four slant funnel-shaped slots is used as the radiator, generating slant ...
Zhao Zhou +4 more
doaj +1 more source
WLAN/WDS performance using directive antennas in highly mobile scenarios: experimental results [PDF]
, 2008 This paper presents experimental results from a series of IEEE 802.11g studies to investigate the performance of vehicular to roadside wireless communications. In particular, two high-gain omni-directional antennas were used at the roadside access point,
Nix, AR, Zaggoulos, G
core +2 more sources
Wideband Low-Profile Luneburg Lens Based on a Glide-Symmetric Metasurface
IEEE Access, 2020 This paper presents a two-dimensional low-profile Luneburg lens that is designed by using a glide-symmetric metasurface. The entire lens consists of two mirrored metal plates with periodic metal pins, and the pins on one plate are glided exactly a half ...
Fangfang Fan +4 more
doaj +1 more source
IEEE Access, 2020 In this article, a dielectric resonator (DR) excited wideband metasurface (MTS) antenna with differential feeding is proposed, which uses two modes of the MTS and the fundamental mode of the DR to achieve multimode operation and obtain wide bandwidth ...
Yonghui Qiu +5 more
doaj +1 more source